31212050534512 has 80 divisors (see below), whose sum is σ = 62583207168384. Its totient is φ = 15069451520000.

The previous prime is 31212050534477. The next prime is 31212050534549. The reversal of 31212050534512 is 21543505021213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195839337 + ... + 195998647.

Almost surely, 2^{31212050534512} is an apocalyptic number.

It is an amenable number.

31212050534512 is an abundant number, since it is smaller than the sum of its proper divisors (31371156633872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31212050534512 is a wasteful number, since it uses less digits than its factorization.

31212050534512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162418 (or 162412 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 31212050534512 its reverse (21543505021213), we get a palindrome (52755555555725).

The spelling of 31212050534512 in words is "thirty-one trillion, two hundred twelve billion, fifty million, five hundred thirty-four thousand, five hundred twelve".